Title :
Moment based CNR estimators for BOC/BPSK modulated signal for Galileo/GPS
Author :
Islam, A. K M Najmul ; Lohan, Elena Simona ; Renfors, Markku
Author_Institution :
Inst. of Commun. Eng., Tampere Univ. of Technol., Tampere
Abstract :
Estimation of the carrier to noise ratio (CNR) is one of the most important functionalities of the GPS/Galileo receivers. However, the conventional GPS receivers are not able to satisfy the CNR estimation requirements for the location based services, E-911, and moderate indoor reception. In this paper we derive a total of seven moment based CNR estimators and present the results for the simulation based BOC (binary offset carrier) modulated signal and the measurement based BPSK (binary phase shift keying) modulated signal. We compare the results of the different estimators and find the most robust estimator.
Keywords :
Global Positioning System; estimation theory; phase shift keying; radio receivers; BOC-BPSK modulated signal; Galileo-GPS receivers; binary offset carrier; carrier-to-noise ratio; moment based CNR estimation; AWGN; Additive white noise; Bandwidth; Binary phase shift keying; Gaussian noise; Global Positioning System; Military satellites; Modulation coding; Phase modulation; Signal to noise ratio;
Conference_Titel :
Positioning, Navigation and Communication, 2008. WPNC 2008. 5th Workshop on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-1798-8
Electronic_ISBN :
978-1-4244-1799-5
DOI :
10.1109/WPNC.2008.4510366
